When it comes to home projection, everyone may be familiar with it, but what are the functions it must have? The first thing that small partners think of is probably core parameters such as resolution and brightness. Unlike business projection, which is mainly used to display PPT, home projection is more based on audio-visual entertainment, because the needs of this part of the user are often more diverse, so some functions are essential, such as the following points:
Whether to support side projection, with the side projection function, the home projection does not need to be hoisted, and the front projection can also ensure that the picture is flat and more flexible. In addition, the angle of side projection is also very important, the current LED micro projection correction angle is usually ± 45 °, the traditional light bulb machine has 15 °, 20 °, the larger the side projection angle, the higher the freedom of placement, the more convenient to use. However, it should be noted that the side projection is usually accompanied by a loss of brightness/resolution, so it is recommended that you choose a high-brightness model as much as possible to ensure the clarity of the side projection.
Whether the built-in hi-fi audio, although the home projector can be connected to the external audio, but the high-quality audio price is not cheap, equivalent to another increase in the expenditure. If the projector itself has a built-in hi-fi speaker, this unnecessary expense can be avoided. And generally manufacturers will choose to cooperate with some famous audio brands, will be tuned and optimized for their own products, the overall effect is much better than an external audio. Therefore, the sound is also an indispensable function of the projector.
Whether to support MEMC motion compensation and HDR10, many people may not know much about these two functions, Xiaoying first to explain to you:
MEMC motion compensation is the current display equipment in the display effect to improve, the naked eye perception of the most obvious function, in the film shooting, a second only 24 pictures, that is, we often say 24 frames, the rest of the time the movement is unknown, we are watching the movie, when the object moves faster, we will find that the object movement is not smooth, and MEMC motion compensation can improve the frame rate of the video, find the missing object movement.
Due to the current common LCD TV retention time is too long, slow response speed problem, resulting in when the picture changes faster, the liquid crystal in the input and output, there will be deformation and deviation, the screen surface details more objects, the overall will appear blurry, while the surface of the flat object, the edge of motion will also appear delayed. MEMC motion compensation can improve the sampling rate of raw data, shorten the duration of each frame, and reduce the duration of each frame on the human visual system, thereby reducing smearing.
In simple terms, MEMC motion compensation can make video smoother and clearer.
HDR is the abbreviation of "high dynamic range", which belongs to a display technology, the corresponding display technology is SDR "standard dynamic range", the so-called dynamic range, in the field of images, refers to the difference between brightness and darkness. The greater the dynamic range, the richer the light and shadow details recorded on the image at the same time. HDR can express brightness with a wider dynamic range than SDR. HDR10 is the most basic and popular one in a variety of HDR formats, widely used in UHD Blu-ray, film and television streaming and other different signal sources, you can retain more of the highlights and dark details of the native shooting screen, so that the picture is more like really closer to the image seen by everyone's naked eye.
Whether or not to support USB 3.0 interface and 5G Wi-Fi, both of which are related to "speed". USB 3.0 interface is mainly used to read external storage media such as removable hard disks and U disks, and it is far better than USB 2.0 in terms of transmission speed. 5G band Wi-Fi is better than traditional 2.4GHz Wi-Fi in terms of speed, but this projector and router can only be used if they are supported at the same time.
These are not easy to be paid attention to by consumers to the function, in fact, the impact on the use experience is very large, we in the future in the purchase of home projection, may wish to pay more attention to these points, I hope to help everyone.